Finding the Fourth Proportional to 160,272.75, 221,162.61 and 88,634.94

Step by Step Solution

1. Step 1: Write the proportion equation
   160,272.75 : 221,162.61 = 88,634.94 : x
2. Step 2: Convert to fraction form
   160,272.75/221,162.61 = 88,634.94/x
3. Step 3: Cross multiply
   160,272.75x = 221,162.61 × 88,634.94
4. Step 4: Simplify right side
   160,272.75x = 19,602,734,667.59
5. Step 5: Solve for x
   x = 19,602,734,667.59/160,272.75
6. Step 6: Final answer
   x = 122,308.59